The Fox News Channel had said it knew who the mole was at the network who had been leaking inside information to an outside media agency.

Fox execs weren’t fooling – the mole has been caught and fired.

Last evening, a News Corp. employee named Joe Muto outed himself to the public in a piece titled “Hi Roger. It’s Me, Joe, The Fox Mole,” published on Gawker.

Muto wrote, “Two hours ago I was called into a meeting with Dianne Brandi, the Fox News executive vice president of legal and business affairs and suspended indefinitely … with pay, oddly enough. They nailed me.”

The once-anonymous columnist and self-described mole raised eyebrows Tuesday after posting on Gawker.com the first of a series of “regular dispatches from inside the organization.”

The debut column featured a video of Mitt Romney’s off-the-record discussion with Fox anchor Sean Hannity. Romney talked about his wife’s love of horseback riding, and also poked fun at billionaire developer Donald Trump.

The second installment included talk and photos of the company’s bathrooms and a description of the “dreary” newsroom, where staffers are “constant worrying about an infestation from bedbugs, mice or some other vermin.”

The then-unidentified mole said Tuesday that after years working at Fox, “the final straw for me came last year.”

Muto’s main bone of contention is “The Fox Nation,” a news aggregator described as “an unholy mashup of the Drudge Report, the Huffington Post and a Klan meeting.”

“I am leaving. Sooner rather than later, I’m guessing. But I can’t just leave quietly, can I? Where’s the fun in that?” said the mole.

Yesterday, a representative for Fox News told ABCNews.com they had identified the mole.

But all the publicity didn’t stopped the mole, who wrote a post on Gawker yesterday afternoon, saying, “So Fox’s PR team has been telling people that they have ‘found’ me and are presently ‘exploring legal options.’ If Fox has smoked me out, it’s news to me. I’m still here. Back to work.”

In response to that, a Fox rep issued the terse statement to Mediaite, “We know who it is.”

And, apparently, they did.

“In the end, it was the digital trail that gave me away,” Muto wrote in his coming-out post. “They knew that someone, using my computer login, had accessed the sources for two videos that ended up on Gawker over the past few weeks. They couldn’t prove it entirely, but I was pretty much the only suspect.”